SkyTrack is an open source PC program for controlling Astronomical Telescopes.
Sources (Ada 2012) are available at https://github.com/WhiteElephantGmbH/Astronomy.git
Executables are provided for Microsoft Windows (Xp and later), OSX and Linux (64 bit Ubuntu)

You are invited to download the program and to try it out.
In its default simulation mode no actual hardware is required.